In the popular mind, perhaps, the Ichthyosaur and Plesiosaur are the typical representatives of that extinct race.
"The Story of Evolution" by Joseph McCabe
Contrary to my expectations, I did not have nightmares about gargantuan squid tangling with enormous ichthyosaurs in the shadowy reaches of the sea last night.
State park preserves Ichthyosaur fossils.
Berlin-Ichthyosaur State Park in Central Nevada has a fossil deposit of huge marine reptiles that lived in shallow seas 225 million years ago.